I am using a Kickr Snap and Favero Assioma power meters with Erg Mode and Power Match turned on. My experience with Erg Mode / Power Match is that the resistance would inexplicably drop out in the middle of an interval and I would be way under target until I slowly clawed my way back up. My cadence was fairly steady and I wasn’t changing gears, but I’m willing to chalk it up to poor form.
The other day I decided to switch from Erg Mode to Standard Mode (3/9 resistance). I didn’t turn off Power Match as I assumed it just wouldn’t work without Erg Mode. However, even in Standard mode, the Kickr would change resistance to keep me near the target. I don’t understand how that is possible, which leads me to believe I do not fully understand how Erg Mode and Power Match work.
Any insight into what is happening here?
For the record, in Standard Mode with Power Match on, the Kickr would still change resistance, but I wouldn’t get big power drops in the middle of an interval. I had to change gears for big changes in power, but I was able to keep my power closer to target, and it was a better experience overall. Now I am just confused.